smart city implementations with web of things · smart home. shops ( gas station ) schools....

Copyright 2016 Fujitsu Laboratories Limited

Smart city implementations with Web of Things October 7th, 2016 Ryuichi Matsukura Fujitsu Limited / Fujitsu Laboratories Limited [email protected]

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Smart city applications by Fujitsu Smart city applications can observe infrastructure such as rivers, manholes, roads and transportation facilities such as factories and shops behavior such as workers, children and pets


river

manhole

delivery street lights

Smart city applications

pets

children

shops factory

workers

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How can devices connect and work? Each device is connected with individual protocol for

each purpose. - DLNA: connects TV set and video recorder - ECHONET Lite/KNX: connects smart phone and home appliances - Propriety protocol: connects devices do NOT support standard


Play video movie Turn on temperature power

consumption

DLNA ECHONET Lite / KNX Propriety protocol

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Issues on device connection Users want to use several applications by one device Need to introduce Platform should support Wide variety of device interfaces / protocols Keeping devices connections stable in area network


Platform

Application Interface (Standard)

Device Interface

DLNA ECHONET Lite KNX Propriety protocol

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Wide variety of device interfaces Platform must absorb interface gap between devices and

applications Device interfaces have many transport protocol and data formats Application interface is Web interface, so simple for developers


Application

Ethernet, Wi-Fi Bluetooth, RS-485/232C, …

Web interface

Many transport protocol and data formats

HTTP+JSON

platform Physical device

Web developers: 710,000 Embedded developers: 3,800 (LinkedIn profiles, 2016)

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Web based operation to devices Web technologies have impact on application developers Operation is so simple for IoT applications to control devices. Application - sets values to Thing with PUT method of HTTP - gets values from Thing with GET method of HTTP


Application Thing

PUT

GET

The Functions of Thing are described with JSON/XML. The application can operate abstract device represented with JSON/XML.

Physical device

Platform

Abstraction

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Overview Architecture to monitor and control devices connected in local

network through gateway from cloud This architecture simplified to 3 ways for connection between

gateway and devices in area networks Features Common application interface for operation to various devices Cover various interfaces of devices with simple ways Easy to detect problems happened in area networks

Standard architecture (ITU-T Y.2070)

Appli-cation Management PF HGW adapter Non-basic

device

Basic device

Local network ( home network)

Internet

P-A

IP Network

Appli-cation

Appli-cation

P-N P-D

Non-basic device

P-H1

P-D

ITU-T Y.2070 architecture overview

Y.2070: Requirements and architecture of home energy management system and home network services

Copyright 2016 Fujitsu Laboratories Limited Application interface

Device interfaces

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Sample applications for Y.2070 27 facilities with 28 kinds of 810 devices

Internet

Service provider

smart home

Shops ( Gas station )

Schools

Residential buildings

Sample application for home

Sample application for school

200 devices connected Home appliances (e.g. air conditioner, lighting), power equipment (e.g. photovoltaic generation, storage battery, fuel cell), Interior (e.g. controllable windows, curtain), 10 kinds of sensors, smart meter connected with ECHONET Lite

350 devices connected in 15 houses Air conditioner and lighting with ECHONET Lite, 4 kinds of sensors with propriety protocol

220 devices connected in 3 shops Air conditioner, lighting in yard, power equipment, 10 kinds of sensors with ECHONET Lite using adapters

40 devices connected in 5 schools Lighting, 5 kinds of sensors with propriety protocol


This project was funded by the Japanese Ministry of Internal Affairs and Communications.

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Application

Standard device

adapter Propriety device

Gateway

Propriety interface

Standard interface

Propriety interface

Prot

ocol

bin

ding

Things (Abstract device)

Platform on cloud

set

get

notify

set

get

notify

Physical devices

Web of Things (WoT) Detail specification for device abstraction and operation

is discussed in W3C Web of Things Interest Group. Physical devices are described as a set of properties in abstract. Each property corresponds to the functions of physical devices

Initial recommendation will be completed in 2018 Siemens, Panasonic, Intel, Fujitsu, and many companies joined.


property value status On/Off mode cooling temp. 28 deg. property value

status On/Off

mode cooling

temp. 28 deg

property value status On/Off mode cooling temp. 28 deg.

Some standard of device interfaces are based on this idea. 8

Keeping device connection stable Operated networks (ex. LTE) CAN remotely recognize places to use with terminals. the current status, such that each of them cannot accept the call.

Area network CANNOT remotely recognize places to use with IoT devices. topology of networks and connected devices. fault occurring in networks and devices.


Operator Operator

Ex. Home network

Interference?

Wrong configuration?

Fault in device? What’s wrong?

Area network Operated network Always recognize

?????

How they connected?

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Management for area network Customer supports want to know

(1) devices connected (2) network topology, and (3) fault occurred Obtain what devices connected to network are Get it directly using standard protocols such as DLNA, ECHONET

Lite, UPnP, … Recognize current network topology frequently changed Collect information of neighbor devices using standard protocol.

Detect fault occurred and identify where it did Get running status of networks and devices and analyze them


Device information Customer support

GW Wi-Fi AP Tablet

Home appliances

Network topology Running status

EX. ITU-T G.9973

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Running status on wireless networks Many devices connected with family of IEEE standards,

however most of them do NOT notice their status. Difficult to know troubles occurred in area networks. IEEE 802.1CF specifies common interfaces for each IEEE

standards should have.


device

applications

Common interfaces for each IEEE standards

Unified to common interface from each

Current standards

IEEE 802.1CF specifies the following area

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Conclusion and Next step These standards do NOT intend to dictate every system They provide just framework for Web of Things. Concrete definitions of vocabulary for properties should be

specified in some organizations. Smart city/IoT business has two aspects of cooperative

and competitive. Standard is one of starting points for cooperative works.

Fujitsu supports customers to setup and operate smart city applications and systems including IoT devices. SSPF: Software for device abstraction and management had been

launched in 2011, compatible to Y.2070. IoT platform: Cloud service for IoT applications had started in

2015. We continue to support Web of Things related standardization to

build up ecosystem with partners. Copyright 2016 Fujitsu Laboratories Limited 12


Thank you for your attention.

smart city implementations with web of things · smart home. shops ( gas station ) schools....

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